<style>
    th{
        text-align: center;
    }
</style>
<col width="90px"/>
<col width="110px"/>
<col width="auto"/>
<col width="280px"/>
<col width="110px"/>
<col width="100px"/>
<col width="110px"/>
<thead>
<th>话题ID</th>
<th>头像/昵称</th>
<th>标题</th>
<th>内容</th>
<th>图片</th>
<th>发布时间</th>
<th>操作</th>
</thead>